Predicted to enable glutaminyl-tRNA synthase (glutamine-hydrolyzing) activity. Predicted to be involved in glutaminyl-tRNAGln biosynthesis via transamidation and mitochondrial translation. Predicted to act upstream of or within regulation of protein stability. Predicted to be part of glutamyl-tRNA(Gln) amidotransferase complex. Predicted to be active in mitochondrion. Human ortholog(s) of this gene implicated in combined oxidative phosphorylation deficiency 40. Orthologous to human QRSL1 (glutaminyl-tRNA amidotransferase subunit QRSL1). [provided by Alliance of Genome Resources, Apr 2022]