1-Aminocyclopropane-1-Carboxylate Synthase Activity
S-Adenosyl-L-Methionine Methylthioadenosine-Lyase (1-Aminocyclopropane-1-Carboxylate-Forming)
Catalysis of the reaction: S-adenosyl-L-methionine(1+) = 1-aminocyclopropane-1-carboxylate + S-methyl-5'-thioadenosine + H(+).