Putative oxidoreductase. Acts as a tumor suppressor and plays a role in apoptosis. Required for normal bone development (By similarity). May function synergistically with p53/TP53 to control genotoxic stress-induced cell death. Plays a role in TGFB1 signaling and TGFB1-mediated cell death. May also play a role in tumor necrosis factor (TNF)-mediated cell death. Inhibits Wnt signaling, probably by sequestering DVL2 in the cytoplasm. {ECO:0000250, ECO:0000269|PubMed:11719429, ECO:0000269|PubMed:15070730, ECO:0000269|PubMed:15548692, ECO:0000269|PubMed:16061658, ECO:0000269|PubMed:16219768, ECO:0000269|PubMed:19366691, ECO:0000269|PubMed:19465938}. This is the function of ENSG00000186153 (WWOX, WW domain containing oxidoreductase).