label: methyl/ethyl malonyl-CoA decarboxylase activity
label_lc: methyl/ethyl malonyl-coa decarboxylase activity
description: "Catalysis of the reaction: (S)-methylmalonyl-CoA + H+ = CO2 + propanoyl-CoA or (2S)-ethylmalonyl-CoA + H+ = butanoyl-CoA + CO2."