Enables CCR4 chemokine receptor binding activity. Predicted to be involved in several processes, including cellular response to cytokine stimulus; leukocyte chemotaxis; and positive regulation of ERK1 and ERK2 cascade. Predicted to act upstream of or within negative regulation of myoblast differentiation. Predicted to be active in extracellular space. Biomarker of anti-basement membrane glomerulonephritis; asthma; pneumonia; and pulmonary fibrosis. Orthologous to human CCL17 (C-C motif chemokine ligand 17). [provided by Alliance of Genome Resources, Apr 2022]