Restricts trafficking of FAF2 from the endoplasmic reticulum to lipid droplets (By similarity). In association with LMBR1L and E3 ubiquitin-protein ligase AMFR, negatively regulates the canonical Wnt signaling pathway in the lymphocytes by promoting the ubiquitin-mediated degradation of CTNNB1 and Wnt receptors FZD6 and LRP6 (PubMed:31073040). Interacts with LMBR1L, FAF2, AMFR and VCP.