Predicted to enable several functions, including identical protein binding activity; ubiquitin binding activity; and ubiquitin-protein transferase activity. Involved in negative regulation of inflammatory response; positive regulation of I-kappaB kinase/NF-kappaB signaling; and regulation of tumor necrosis factor-mediated signaling pathway. Acts upstream of or within apoptotic nuclear changes; keratinization; and mitochondrion organization. Predicted to be located in cytosol; dendrite; and postsynaptic density. Predicted to be part of LUBAC complex. Is expressed in genitourinary system. Used to study atopic dermatitis. Orthologous to human SHARPIN (SHANK associated RH domain interactor). [provided by Alliance of Genome Resources, Apr 2022]