This gene is composed of 11 exons and codes for a protein that is found on the inner membrane of mitochondria. Tafazzin acts to maintain the levels of cardiolipin, which is essential for energy production in the mitochondria. Additionally tafazzins promote the differentiation of osteoblasts, while preventing the maturation of adipocytes. Mutations in this gene have been associated with Left ventricular noncompaction and cardiomyopathy.