Involved in negative regulation of toll-like receptor 9 signaling pathway. Predicted to be located in endoplasmic reticulum and membrane. Predicted to be integral component of membrane. Predicted to be active in mitochondrion. Is expressed in central nervous system; dorsal root ganglion; and retina. Orthologous to human GRAMD4 (GRAM domain containing 4). [provided by Alliance of Genome Resources, Apr 2022]