Enables LIM domain binding activity. Involved in dendrite arborization; positive regulation of mini excitatory postsynaptic potential; and regulation of cell morphogenesis. Located in adherens junction; axon; and somatodendritic compartment. Colocalizes with excitatory synapse. Orthologous to human AFDN (afadin, adherens junction formation factor). [provided by Alliance of Genome Resources, Apr 2022]