GO:0046539

histamine N-methyltransferase activity

Details: 
Catalysis of the reaction: S-adenosyl-L-methionine(1+) + histamine = N(tau)-methylhistamine + S-adenosyl-L-homocysteine + H(+). [EC:2.1.1.8, RHEA:19304]
Evidence Code: 
IEA