The Blues have sold their American Hockey League affiliate the Peoria Rivermen to the Vancouver Canucks.
The deal still has to be approved. Outside the announcement of the sale, neither team has released any additional details, but Fox 2 reports any changes are not likely until after the season.
Tom Stillman assumed ownership of the Rivermen when he purchased the Blues last May.
Jannik Hansen and Dale Weise also scored for Vancouver (14-9-6), which ended a two-game losing streak.
Jaden Schwartz and Patrik Berglund both scored in the third period for the Blues (16-11-2), who lost for only the second time in seven games. St. Louis had won three straight with rookie goalie Jake Allen. He stopped 16 Canucks shots.
The Blues outshot the Canucks 34-19. Vancouver managed only a total of five shots in the first and third periods.
After being badly outshot in the opening frame, the Canucks woke up in the second period and scored three unanswered goals.
Schneider started after watching the previous four games from the bench. He was kept busy in a scoreless first period as the Blues outshot the Canucks 15-3.
He made saves on David Perron from left wing and Alex Pietrangelo from the right point. After retrieving his own rebound, Perron sent the puck to Pietrangelo.
Later in the period, he robbed Pietrangelo from short range with his glove and foiled Andy McDonald, who returned to the Blues lineup after missing 10 games with a knee injury.
Hansen opened the scoring 2:30 into the second period when he took a cross-ice pass from Mason Raymond in the neutral zone, skated over the blue line and beat Allen with a slap shot.
The goal came on Vancouver's sixth shot of the game. Daniel Sedin gave the Canucks a 2-0 lead less than two minutes later when he fired in brother Henrik's angle pass from behind the goal line.
Daniel Sedin ended his scoring drought at eight games.
Weise, known for fisticuffs rather than scoring dexterity, extended Vancouver's lead to 3-0 midway through the second period on a nifty play. He took a spin-around forehand pass from Jordan Schroeder and then deked Allen while skating across the goal mouth.
It was Weise's second goal of the season and first in 11 games.
The Blues got on the scoreboard just over five minutes into the third period when Vladimir Tarasenko's shot bounced in off Schwartz, cutting their deficit to 3-1.
Berglund pulled St. Louis within a goal at 13:38 of the third as Kris Russell's shot bounced to him off the back of Canuck defenseman Chris Tanev's head.
The Canucks received a power play with 3:06 left in the third period as Vladimir Sobotka was called for holding. The whistle finally blew after the Canucks had a prolonged delayed penalty, struggled to get the puck up the ice with an extra attacker. Kevin Bieksa just missed the net as he tried to put in a pass from Raymond.
St. Louis was blanked on three power plays. The Canucks were unsuccessful on two.
NOTES: The Canucks lost forward Zack Kassian to an injury in the first period. He had returned to Vancouver's lineup after missing the previous two games with a sore back. He fought St. Louis forward Chris Stewart, the NHL's first star of the week, less than three minutes in. ... Vancouver forward Andrew Ebbett was scratched, and David Booth remains out indefinitely with a leg injury. ... Stewart played his 300th NHL game. ... Blues forward T.J. Oshie missed his third consecutive game with a rib injury. He is expected to return Saturday in Edmonton.
Patrik Berglund also scored for St. Louis, which swept its three-game road swing after losing five straight games.
Blues rookie goaltender Jake Allen made 28 saves and stopped the Canucks' Ryan Kesler and Alex Burrows in the shootout.
Kesler and Henrik Sedin had their first goals of the season and Mason Raymond also scored in regulation for Vancouver, which has lost two straight after winning six in a row.
The Canucks looked destined to lose in regulation after the Blues took a 3-2 lead early in the third period, but Raymond tied the game on a power play with 1:47 remaining.