Purity > 85% as determined by SDS-PAGE. MW: 20.6kDa. Full Length: 1-118aa. N-terminal 10xHis-tagged and C-terminal Myc-tagged. Mus musculus (Mouse). Catalyzes the hydrolysis of 5-hydroxyisourate (HIU) to 2-oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline (OHCU).