Automated description from the Alliance of Genome Resources (Release 7.0.0)
Enables transmembrane monodehydroascorbate reductase activity. Involved in ascorbate homeostasis and intracellular iron ion homeostasis. Located in chromaffin granule membrane. Is expressed in several structures, including genitourinary system; gut; nervous system; node; and nose. Orthologous to human CYB561 (cytochrome b561).