Involved in myoblast fusion involved in skeletal muscle regeneration. Acts upstream of or within lipid droplet organization. Predicted to be located in Golgi apparatus; endoplasmic reticulum; and membrane. Predicted to be integral component of membrane. Is expressed in several structures, including alimentary system; central nervous system; glans of male genital tubercle; skeleton; and vibrissa. Orthologous to human PTGFRN (prostaglandin F2 receptor inhibitor). [provided by Alliance of Genome Resources, Apr 2022]