Predicted to enable several functions, including ATP binding activity; ceramide floppase activity; and endopeptidase regulator activity. Involved in several processes, including regulation of intracellular cholesterol transport; regulation of protein glycosylation; and sphingolipid metabolic process. Acts upstream of or within central nervous system myelin formation. Located in lysosomal membrane. Is expressed in brain; retina; and spinal cord. Orthologous to human ABCA2 (ATP binding cassette subfamily A member 2). [provided by Alliance of Genome Resources, Apr 2022]