3-oxo-(21Z,24Z,27Z,30Z,33Z)-hexatriacontapentaenoyl-CoA + NADPH + H(+) => (3R)-hydroxy-(21Z,24Z,27Z,30Z,33Z)-hexatriacontapentaenoyl-CoA + NADP(+)
3-oxo-(21z,24z,27z,30z,33z)-hexatriacontapentaenoyl-coa + nadph + h(+) => (3r)-hydroxy-(21z,24z,27z,30z,33z)-hexatriacontapentaenoyl-coa + nadp(+)