Receptor for EDA isoform A2, but not for EDA isoform A1. Mediates the activation of the NF-kappa-B and JNK pathways. Activation seems to be mediated by binding to TRAF3 and TRAF6. . This is the function of Ensembl gene identifier ENSG00000131080 (EDA2R, ectodysplasin A2 receptor).