Predicted to enable protein heterodimerization activity and protein homodimerization activity. Predicted to be involved in extrinsic apoptotic signaling pathway in absence of ligand and intrinsic apoptotic signaling pathway in response to DNA damage. Predicted to be active in mitochondrial outer membrane. Is expressed in craniocervical region bone; hemolymphoid system; musculature; and respiratory system. Orthologous to human BCL2A1 (BCL2 related protein A1). [provided by Alliance of Genome Resources, Apr 2022]