What is "histidinol-phosphatase"

In enzymology, a histidinol-phosphatase is an enzyme that catalyzes the chemical reaction

L-histidinol phosphate + HO $\rightleftharpoons$ L-histidinol + phosphate

Thus, the two substrates of this enzyme are L-histidinol phosphate and HO, whereas its two products are L-histidinol and phosphate.

This enzyme belongs to the family of hydrolases, to be specific, those acting on phosphoric monoester bonds. The systematic name of this enzyme class is L-histidinol-phosphate phosphohydrolase. Other names in common use include histidinol phosphate phosphatase, L-histidinol phosphate phosphatase, histidinolphosphate phosphatase, HPpase, and histidinolphosphatase. This enzyme participates in histidine metabolism.