Predicted to enable all-trans-retinol binding activity and fatty acid binding activity. Acts upstream of or within regulation of granulocyte differentiation; response to vitamin A; and retinoid metabolic process. Located in lipid droplet. Is expressed in several structures, including alimentary system; central nervous system; embryo ectoderm; embryo mesenchyme; and genitourinary system. Orthologous to human RBP1 (retinol binding protein 1). [provided by Alliance of Genome Resources, Apr 2022]