Enables several functions, including arrestin family protein binding activity; ubiquitin protein ligase binding activity; and ubiquitin-like ligase-substrate adaptor activity. Involved in several processes, including extracellular vesicle biogenesis; negative regulation of Notch signaling pathway; a
nd ubiquitin-dependent protein catabolic process. Located in cytoplasmic vesicle; extracellular vesicle; and plasma membrane. [provided by Alliance of Genome Resources, Jul 2025]