E3 ubiquitin-protein ligase RNF103, hKF-1, KF-1, Ring Finger Protein 103, RN103_HUMAN, RNF 103, Rnf103, ZFP 103, Zfp-103, Zinc Finger Protein 103, Zinc finger protein 103 homolog, Zinc finger protein expressed in cerebellum, Zinc finger protein homologous to Zfp103 in mouse.
Acts as an E2-dependent E3 ubiquitin-protein ligase, probably involved in the ER-associated protein degradation pathway.