Enables DNA binding activity. Acts upstream of or within several processes, including nervous system development; positive regulation of Notch signaling pathway; and regulation of respiratory gaseous exchange by nervous system process. Predicted to be located in cytoplasm. Predicted to be active in nucleus. Is expressed in several structures, including brain; genitourinary system; and neural ectoderm. Orthologous to human GSX2 (GS homeobox 2). [provided by Alliance of Genome Resources, Apr 2022]