label: histone H4K12 methyltransferase activity
label_lc: histone h4k12 methyltransferase activity
description: "Catalysis of the reaction: S-adenosyl-L-methionine + histone H4 L-lysine (position 12) = S-adenosyl-L-homocysteine + histone H4 N6-methyl-L-lysine (position 12). This reaction is the addition of a methyl group to the lysine residue at position 12 of the histone H4 protein."