Is predicted to encode a protein with the following domains: NADH:ubiquinone oxidoreductase intermediate-associated protein 30; Complex I intermediate-associated protein 30, mitochondrial; Galactose-binding-like domain superfamily; and Complex I intermediate-associated protein 30 (CIA30). Is an ortholog of C. elegans nuaf-1. In C. elegans, nuaf-1 is involved in mitochondrial respiratory chain complex I assembly.