ID 2.1.1.2 DE guanidinoacetate N-methyltransferase. CA guanidinoacetate + S-adenosyl-L-methionine = creatine + H(+) + CA S-adenosyl-L-homocysteine. DR Q7ZXG7, GAMTA_XENLA; Q5HZ68, GAMTB_XENLA; Q2TBQ3, GAMT_BOVIN ; DR Q71N41, GAMT_DANRE ; Q14353, GAMT_HUMAN ; O35969, GAMT_MOUSE ; DR P10868, GAMT_RAT ; Q6PBF6, GAMT_XENTR ; //