The function of Ensembl gene identifier ENSG00000141219 (MTNAP1, mitochondrial nucleoid associated protein 1) is as follows. Critical regulator of mitochondrial DNA (mtDNA) abundance (PubMed:37676315). Binds dsDNA throughout the mitochondrial genome without sequence specificity and controls mtDNA copy number by promoting its replication (PubMed:37676315). Also plays important roles in mitochondrial metabolism and cell proliferation (PubMed:37676315). .