GO:0004128

cytochrome-b5 reductase activity, acting on NAD(P)H

Details: 
Catalysis of the reaction: NAD(P)H + H+ + 2 ferricytochrome b(5) = NAD(P)+ + 2 ferrocytochrome b(5). [EC:1.6.2.2, ISBN:0198547684]
Evidence Code: