Receptor for TNFSF8/CD30L (PubMed:8391931). May play a role in the regulation of cellular growth and transformation of activated lymphoblasts. Regulates gene expression through activation of NF-kappa-B (PubMed:8999898). Interacts with TRAF1, TRAF2, TRAF3 and TRAF5. Detected in alveolar macrophages (at protein level). Phosphorylated on serine and tyrosine residues (Probable). Isoform 2 is constitutively phosphorylated (PubMed:8839832). Most specific Hodgkin disease associated antigen. Belongs to the TNFR8 family.