Predicted to enable CCR chemokine receptor binding activity and chemokine activity. Predicted to be involved in several processes, including cellular response to cytokine stimulus; leukocyte chemotaxis; and positive regulation of intracellular signal transduction. Predicted to act upstream of or within leukocyte chemotaxis and negative regulation of myeloid cell differentiation. Located in external side of plasma membrane. Is expressed in branchial arch; hemolymphoid system; and renal vasculature. Orthologous to human CCL21 (C-C motif chemokine ligand 21). [provided by Alliance of Genome Resources, Apr 2022]