Parayko and the Blues host the Pittsburgh Penguins in the "NHL on NBC Game of the Week" at Scottrade Center on Sunday (Noon ET; NBC, TVAS, NHL.TV).
The 24-year-old from St. Albert, Alberta, said his bigger role will never diminish his desire to continue learning.
"There are always different things to learn and to be done and I always want to be a student of the game and keep learning," he said. "This is a group where a lot of things can be learned, so it's awesome."
One of those priorities, he said, was adapting to the length of the NHL season.
In his three seasons at University of Alaska-Fairbanks from 2012-15, he played schedules of 33, 37 and 34 games.
"When you come to the NHL and an 82-game season, it's obviously a lot different," Parayko said. "The players are bigger, faster, stronger and I've had an opportunity to get better and you have to be ready each and every night to succeed."
Bigger, faster and stronger describes Parayko well.
Parayko (6-foot-6, 230 pounds), who's had Bouwmeester as his defense partner in recent games, is a superb skater with a heavy shot and a physical edge.