(13Z,16Z,19Z,22Z)-3-oxooctacosatetraenoyl-CoA + NADPH + H(+) = (3R)-hydroxy-(13Z,16Z,19Z,22Z)-octacosatetraenoyl-CoA + NADP(+)
(13z,16z,19z,22z)-3-oxooctacosatetraenoyl-coa + nadph + h(+) = (3r)-hydroxy-(13z,16z,19z,22z)-octacosatetraenoyl-coa + nadp(+)