Acts upstream of or within negative regulation of lipid catabolic process and regulation of type B pancreatic cell proliferation. Located in mitochondrion. Is expressed in several structures, including adrenal gland; brain; gut gland; male reproductive gland or organ; and trachea. Orthologous to several human genes including FMC1-LUC7L2 (FMC1-LUC7L2 readthrough). [provided by Alliance of Genome Resources, Apr 2022]