The protein encoded by this gene is a member of the tumor necrosis factor (TNF) family of receptors. It is expressed on the surface of most cell types, including cells of epithelial and myeloid lineages, but not on T and B lymphocytes. The protein specifically binds the lymphotoxin membrane form (a complex of lymphotoxin-alpha and lymphtoxin-beta). The encoded protein and its ligand play a role in the development and organization of lymphoid tissue and tranformed cells. Activation of the encoded protein can trigger apoptosis.