Putative oxidoreductase. Acts as a tumor suppressor and plays a role in apoptosis. 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. Required for normal bone development. Inhibits Wnt signaling, probably by sequestering DVL2 in the cytoplasm (By similarity).
Subcellular locations: Cytoplasm, Nucleus, Mitochondrion, Golgi apparatus, Lysosome
Partially localizes to the mitochondria (By similarity). Translocates to the nucleus upon genotoxic stress or TNF stimulation (By similarity). Translocates to the nucleus in response to TGFB1. Isoform 5 and isoform 6 may localize in the nucleus (By similarity). Localized to the lysosome probably upon binding to VOPP1 (By similarity).