Predicted to enable diacylglycerol binding activity and triglyceride binding activity. Predicted to be involved in lipid droplet formation; phospholipid biosynthetic process; and positive regulation of sequestering of triglyceride. Predicted to be located in endoplasmic reticulum membrane. Predicted to be integral component of endoplasmic reticulum membrane. Orthologous to human FITM1 (fat storage inducing transmembrane protein 1). [provided by Alliance of Genome Resources, Apr 2022]