The function of ENSG00000101193 (GID8, GID complex subunit 8 homolog) is as follows. Core component of the CTLH E3 ubiquitin-protein ligase complex that selectively accepts ubiquitin from UBE2H and mediates ubiquitination and subsequent proteasomal degradation of the transcription factor HBP1 (PubMed:29911972). Acts as a positive regulator of Wnt signaling pathway by promoting beta-catenin (CTNNB1) nuclear accumulation (PubMed:28829046). {ECO:0000269|PubMed:28829046, ECO:0000269|PubMed:29911972}.