Enables actin filament binding activity and actin monomer binding activity. Involved in dendrite morphogenesis; regulation of actin filament polymerization; and regulation of filopodium assembly. Located in several cellular components, including filopodium tip; lamellipodium; and nuclear speck. Is expressed in cartilage; endocrine gland; genitourinary system; nervous system; and trachea. Orthologous to human ABITRAM (actin binding transcription modulator). [provided by Alliance of Genome Resources, Apr 2022]