E3 ubiquitin-protein ligase that catalyzes monoubiquitination of 40S ribosomal proteins RPS2/us5 and RPS3/us3 in response to ribosome stalling (PubMed:34348161, PubMed:34469731). Part of a ribosome quality control that takes place when ribosomes have stalled during translation initiation (iRQC): RNF10 acts by mediating monoubiquitination of RPS2/us5 and RPS3/us3, promoting their degradation by the proteasome (PubMed:34348161, PubMed:34469731). Also promotes ubiquitination of 40S ribosomal proteins in response to ribosome stalling during translation elongation (PubMed:34348161). The action of RNF10 in iRQC is counteracted by USP10 (PubMed:34469731). May also act as a transcriptional factor involved in the regulation of MAG (Myelin-associated glycoprotein) expression (By similarity). Acts as a regulator of Schwann cell differentiation and myelination (By similarity).
