Enables ephrin receptor binding activity. Involved in ephrin receptor signaling pathway; neuron remodeling; and substrate-dependent cell migration. Acts upstream of or within negative regulation of ubiquitin-dependent protein catabolic process and regulation of ephrin receptor signaling pathway. Located in neuron projection. Is expressed in several structures, including genitourinary system; gut gland; nervous system; olfactory epithelium; and trachea. Orthologous to human ANKS1A (ankyrin repeat and sterile alpha motif domain containing 1A). [provided by Alliance of Genome Resources, Apr 2022]