The function of Ensembl gene identifier ENSG00000112249 (ASCC3, activating signal cointegrator 1 complex subunit 3) is as follows. ATPase involved both in DNA repair and rescue of stalled ribosomes (PubMed:22055184, PubMed:28757607, PubMed:32099016, PubMed:32579943, PubMed:36302773). 3'-5' DNA helicase involved in repair of alkylated DNA: promotes DNA unwinding to generate single- stranded substrate needed for ALKBH3, enabling ALKBH3 to process alkylated N3-methylcytosine (3mC) within double-stranded regions (PubMed:22055184). Also involved in activation of the ribosome quality control (RQC) pathway, a pathway that degrades nascent peptide chains during problematic translation (PubMed:28757607, PubMed:32099016, PubMed:32579943, PubMed:36302773). Drives the splitting of stalled ribosomes that are ubiquitinated in a ZNF598-dependent manner, as part of the ribosome quality control trigger (RQT) complex (PubMed:28757607, PubMed:32099016, PubMed:32579943, PubMed:36302773). Part of the ASC-1 complex that enhances NF-kappa-B, SRF and AP1 transactivation (PubMed:12077347). {ECO:0000269|PubMed:12077347, ECO:0000269|PubMed:22055184, ECO:0000269|PubMed:28757607, ECO:0000269|PubMed:32099016, ECO:0000269|PubMed:32579943, ECO:0000269|PubMed:36302773}.