The 23-year-old insists he is ready for more responsibility in Steve McCormack’s squad, after playing well at last year’s World Cup.
With Four Nations qualification in 2016 the prize for the European champions, Walker knows that a lot is at stake.
“I consider myself a lot more of a senior player than I did at the World Cup last year,” he told the Hull Daily Mail.
“This year we have a lot of young players named in the initial 26-man squad, including Sonny Esslemont and Jack Stewart from Rovers.
“There are other young players who will be looking up to others in the squad and I’d like to be one of those players.
“I’ve not spoken to Steve about my role in the side but I’d like to be thought of as a senior player.
“I want to play in the Four Nations against the best players and teams in the world.
“We have a good squad and we’ll be doing all we can to qualify.”
“I hope I can take my league form into these matches,” he added.
“Playing internationally will improve my game. I hope I can come back to Rovers a better player.
“Playing for Scotland will benefit Rovers further down the line.”