Predicted to enable G protein-coupled receptor activity. Acts upstream of or within T cell differentiation; negative regulation of leukocyte chemotaxis; and negative regulation of tumor necrosis factor production. Predicted to be located in cytoplasmic vesicle and plasma membrane. Predicted to be integral component of membrane. Predicted to be integral component of plasma membrane. Orthologous to human GPR18 (G protein-coupled receptor 18). [provided by Alliance of Genome Resources, Apr 2022]