Predicted to enable CD4 receptor binding activity; enzyme binding activity; and phospholipid scramblase activity. Predicted to be involved in plasma membrane phospholipid scrambling. Predicted to act upstream of or within cellular response to lipopolysaccharide. Predicted to be active in plasma membrane. Orthologous to human PLSCR4 (phospholipid scramblase 4). [provided by Alliance of Genome Resources, Apr 2022]