Predicted to enable cytoskeletal protein binding activity; fatty acid binding activity; and long-chain fatty acid transporter activity. Involved in several processes, including lipid homeostasis; lipid transport; and positive regulation of long-chain fatty acid import into cell. Acts upstream of or within brown fat cell differentiation and regulation of phosphatidylcholine biosynthetic process. Located in extracellular space. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; limb; and sensory organ. Human ortholog(s) of this gene implicated in hypertension and type 2 diabetes mellitus. Orthologous to human FABP3 (fatty acid binding protein 3). [provided by Alliance of Genome Resources, Apr 2022]