label: methylenetetrahydrofolate reductase (NAD(P)H) activity
label_lc: methylenetetrahydrofolate reductase (nad(p)h) activity
description: "Catalysis of the reaction: 5-methyltetrahydrofolate + NAD(P)+ = 5,10-methylenetetrahydrofolate + NAD(P)H + H+."