Component of MIOREX complexes, large expressome-like assemblies of ribosomes with factors involved in all the steps of post-transcriptional gene expression (PubMed:25683707). Component of a multi-subunit COQ enzyme complex required for coenzyme Q biosynthesis (PubMed:25631044). Cofactor biosynthesis; ubiquinone biosynthesis. Associates with the mitochondrial ribosome (PubMed:25683707). Component of a multi-subunit COQ enzyme complex (PubMed:25631044). Shows impaired de novo coenzyme Q biosynthesis. Present with 1470 molecules/cell in log phase SD medium.