Function
Component of the mitochondrial ribosome (mitoribosome), a dedicated translation machinery responsible for the synthesis of mitochondrial genome-encoded proteins, including at least some of the essential transmembrane subunits of the mitochondrial respiratory chain. The mitoribosomes are attached to the mitochondrial inner membrane and translation products are cotranslationally integrated into the membrane (PubMed:25609543, PubMed:24675956). mL67/MHR1 also has extraribosomal functions, being involved in regulation of mitochondrial DNA recombination, maintenance and repair, and generation of homoplasmic cells (PubMed:11121487, PubMed:12198175, PubMed:14565971, PubMed:16337661, PubMed:7664749, PubMed:9736700). mL67/MHR1 also acts as transcription factor involved in regulation of RNA polymerase II-dependent transcription (PubMed:12034822).