The function of ENSG00000198862 (LTN1, listerin E3 ubiquitin protein ligase 1) is as follows. E3 ubiquitin-protein ligase component of the ribosome quality control complex (RQC), a ribosome-associated complex that mediates ubiquitination and extraction of incompletely synthesized nascent chains for proteasomal degradation (PubMed:23685075, PubMed:25132172, PubMed:25578875, PubMed:28757607). Within the RQC complex, LTN1 is recruited to stalled 60S ribosomal subunits by NEMF and mediates ubiquitination of stalled nascent chains (PubMed:25578875). Ubiquitination leads to VCP/p97 recruitment for extraction and degradation of the incomplete translation product (By similarity). {ECO:0000250|UniProtKB:Q04781, ECO:0000269|PubMed:23685075, ECO:0000269|PubMed:25132172, ECO:0000269|PubMed:25578875, ECO:0000269|PubMed:28757607}.