Predicted to enable 2 iron, 2 sulfur cluster binding activity; identical protein binding activity; and iron ion binding activity. Acts upstream of or within regulation of cellular respiration. Located in mitochondrial outer membrane. Is expressed in several structures, including ganglia; genitourinary system; heart; immune system; and liver. Orthologous to human CISD1 (CDGSH iron sulfur domain 1). [provided by Alliance of Genome Resources, Apr 2022]