(2E,21Z,24Z,27Z,30Z,33Z)-hexatriacontahexaenoyl-CoA + NADPH + H(+) = (21Z,24Z,27Z,30Z,33Z)-hexatriacontapentaenoyl-CoA + NADP(+)
(2e,21z,24z,27z,30z,33z)-hexatriacontahexaenoyl-coa + nadph + h(+) = (21z,24z,27z,30z,33z)-hexatriacontapentaenoyl-coa + nadp(+)