Enables 17-alpha,20-alpha-dihydroxypregn-4-en-3-one dehydrogenase activity and testosterone 17-beta-dehydrogenase (NADP+) activity. Involved in response to estrogen and response to xenobiotic stimulus. Located in cytoplasm and nucleus. Human ortholog(s) of this gene implicated in 46,XY sex reversal 8; B-lymphoblastic leukemia/lymphoma; T-cell acute lymphoblastic leukemia; and leukemia. Orthologous to several human genes including AKR1C4 (aldo-keto reductase family 1 member C4). [provided by Alliance of Genome Resources, Apr 2022]