Predicted to enable ATP:ADP antiporter activity. Involved in determination of adult lifespan; mitochondrion organization; and positive regulation of apoptotic process. Located in mitochondrion. Expressed in several structures, including body wall musculature; hermaphrodite somatic gonadal cell; intestine; pharynx; and vulva. Used to study mitochondrial metabolism disease. Human ortholog(s) of this gene implicated in Alzheimer's disease; autosomal dominant progressive external ophthalmoplegia with mitochondrial DNA deletions 2; facioscapulohumeral muscular dystrophy; intrinsic cardiomyopathy (multiple); and mitochondrial DNA depletion syndrome (multiple). Is an ortholog of human SLC25A4 (solute carrier family 25 member 4); SLC25A5 (solute carrier family 25 member 5); and SLC25A6 (solute carrier family 25 member 6).