Acts upstream of or within hematopoietic stem cell homeostasis. Predicted to be located in mitochondrial outer membrane. Predicted to be integral component of membrane. Predicted to be active in mitochondrion. Is expressed in several structures, including eye; heart; and nervous system. Orthologous to human ARMCX1 (armadillo repeat containing X-linked 1). [provided by Alliance of Genome Resources, Apr 2022]