Enables actin filament binding activity; phosphatidylinositol bisphosphate binding activity; and protein phosphatase binding activity. Involved in several processes, including cellular response to cytokine stimulus; negative regulation of cellular component organization; and positive regulation of cellular component organization. Acts upstream of or within cell projection organization and negative regulation of cell size. Located in several cellular components, including cofilin-actin rod; growth cone; and lamellipodium. Is active in glutamatergic synapse. Used to study myocardial infarction. Biomarker of several diseases, including epilepsy (multiple); impotence; muscular atrophy; ureteral obstruction; and vitamin B12 deficiency. Orthologous to human CFL1 (cofilin 1). [provided by Alliance of Genome Resources, Apr 2022]