oxidoreductase, acting on the CH-CH group of donors. similar to oxidoreductase, acting on the CH-CH group of donors [Arabidopsis thaliana] (TAIR:AT1G18180.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO24356.1); contains InterPro domain Protein of unknown function DUF1295 (InterPro:IPR010721); contains InterPro domain 3-oxo-5-alpha-steroid 4-dehydrogenase, C-terminal; (InterPro:IPR001104)