An enzyme which catalyzes the hydrolysis of LACTOSE to D-GALACTOSE and D-GLUCOSE.
Defects in the enzyme cause LACTOSE INTOLERANCE.
https://www.chu-lyon.fr/deficit-congenital-en-lactase 2021 France popular works congenital lactase deficiency lactase
--- http://www.cochrane.org/fr/CD004591 2013 United Kingdom France French review of literature french abstract infant, premature lactase treatment outcome milk, human lactose intolerance
--- http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Lng=FR&Expert=53690 France French scientific and technical information metabolism, inborn errors rare diseases lactase