Keane has suffered a mixed first season at Everton following his £25 million move from Burnley last summer, but his form has improved in recent weeks and he hopes to force his way back into the England squad for the World Cup.
“While I was really disappointed not to be in the last England squad, it just gives you the motivation to work harder and want to get into the next one,” said Keane.
“I feel like I’m still in the manager’s thoughts for the World Cup. I’ve been in a lot of squads in the past year or two.
“I know if I play to my ability for the rest of the season, I will have a good chance. It’s up to me to do that.”
Meanwhile, the centre-back has praised Sam Allardyce since he arrived at Goodison Park in November, saying the former England boss gives Everton an understanding that they previously did not have.
Keane added: “I’ve been a lot more settled since the manager came in and I know what my role is in the team.
“You want to be clear-minded and understand your role and responsibilities going into a game. That’s how it is with the manager here.”