The Republic of Ireland captain has agreed a new contract with Bruce Arena's side which will keep him in the MLS for another two years
The Republic of Ireland captain, who joined the club from English Premier League side Tottenham Hotspur in 2011, said that he was "excited" about continuing his career in Los Angeles.
"I've just verbally agreed a two-year contract, maybe extending to three," Keane told Sky Sports.
"I'm certainly excited about that and playing for the Galaxy in the future. I didn't think I was going to go there and then come back to the Premier League, but I'm enjoying my football there and the club has been very good to me."
Keane, who turned 33 in July, believes that he still has "a good few years left" in football but admitted that he was planning to study for coaching qualifications in the new year.
"I've still got a good few years left in me," continued the striker. "But I'm looking to do my coaching badges in January in Ireland.
"The FAI has a good structure here to help players if they want to do that. It's something I'm passionate about and need to get into if I want to stay in the game."
Keane has been retained as Ireland captain by Martin O'Neill for the new Boys in Green manager's first two games in charge, but will not play any more competitive football in 2013 following Galaxy's exit from the MLS playoffs.