Predicted to enable protein dimerization activity and protein domain specific binding activity. Acts upstream of or within Sertoli cell proliferation and extrinsic apoptotic signaling pathway in absence of ligand. Located in cytosol and mitochondrial membrane. Is expressed in several structures, including central nervous system; early conceptus; gallbladder; genitourinary system; and intestine. Human ortholog(s) of this gene implicated in transient cerebral ischemia. Orthologous to human BCL2L2 (BCL2 like 2). [provided by Alliance of Genome Resources, Apr 2022]