Enables enzyme binding activity. Involved in several processes, including negative regulation of cardiac muscle cell apoptotic process; negative regulation of mitochondrial membrane permeability involved in apoptotic process; and positive regulation of cell growth involved in cardiac muscle cell development. Located in membrane raft; mitochondrial inner membrane; and mitochondrial outer membrane. Biomarker of alcoholic cardiomyopathy. Human ortholog(s) of this gene implicated in intrinsic cardiomyopathy (multiple); mitochondrial DNA depletion syndrome (multiple); and mitochondrial myopathy (multiple). Orthologous to human SLC25A4 (solute carrier family 25 member 4). [provided by Alliance of Genome Resources, Apr 2022]