Enables CXCR5 chemokine receptor binding activity and chemokine activity. Involved in several processes, including B cell chemotaxis across high endothelial venule; activation of GTPase activity; and lymph node development. Located in extracellular space. Is expressed in Peyer's patch; aorta; central nervous system; and retina. Orthologous to human CXCL13 (C-X-C motif chemokine ligand 13). [provided by Alliance of Genome Resources, Apr 2022]