Acts upstream of or within mitochondrial respiratory chain complex I assembly and negative regulation of insulin secretion involved in cellular response to glucose stimulus. Predicted to be located in mitochondrion. Human ortholog(s) of this gene implicated in nuclear type mitochondrial complex I deficiency 10. Orthologous to human NDUFAF2 (NADH:ubiquinone oxidoreductase complex assembly factor 2). [provided by Alliance of Genome Resources, Apr 2022]