Predicted to enable several functions, including DNA-binding transcription repressor activity, RNA polymerase II-specific; RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; and protein domain specific binding activity. Involved in brain development; liver development; and response to nutrient levels. Located in nucleus. Biomarker of status epilepticus. Orthologous to human PROX1 (prospero homeobox 1). [provided by Alliance of Genome Resources, Apr 2022]