ASB13 is a member of the ASB protein family, characterized by ankyrin repeat domains and a SOCS box domain. It plays a crucial role in regulating protein degradation and signal transduction. As an E3 ubiquitin ligase, ASB13 aids in tagging and breaking down specific protein targets. Its SOCS box domain interacts with components of the ubiquitin-proteasome system, including E2 enzymes and Cullin-RING ligase complexes, to manage targeted protein turnover.