Predicted to be involved in D-serine transport. Predicted to act upstream of or within negative regulation of transcription, DNA-templated. Predicted to be located in several cellular components, including Golgi apparatus; nuclear lumen; and perinuclear region of cytoplasm. Is expressed in several structures, including central nervous system; dorsal root ganglion; eye; genitourinary system; and thymus. Orthologous to human NFKBIE (NFKB inhibitor epsilon). [provided by Alliance of Genome Resources, Apr 2022]