BCL2/adenovirus E1B 19 kDa protein-interacting protein 3-like is a protein encoded by the BNIP3L gene in humans. It is a tumor suppressor gene located at chromosome 8p21. It functions in promoting apoptosis by interacting with antiapoptotic proteins (such as Bcl-2, Bcl-x(L), E1B19K, Nix) and as a tumor suppressor. It is involved in lung cancer development and occurrence, when down-regulated.