Enables CCR2 chemokine receptor binding activity. Predicted to be involved in several processes, including cellular response to cytokine stimulus; leukocyte chemotaxis; and positive regulation of natural killer cell chemotaxis. Predicted to act upstream of or within chemotaxis. Located in extracellular space. Is expressed in several structures, including central nervous system; leg; lung; retina; and vertebral axis musculature. Human ortholog(s) of this gene implicated in multiple sclerosis. Orthologous to human CCL7 (C-C motif chemokine ligand 7). [provided by Alliance of Genome Resources, Apr 2022]