(R)-amidase (, R-stereospecific amidase, R-amidase) is an enzyme with systematic name (R)-piperazine-2-carboxamide amidohydrolase. This enzyme catalyses the following chemical reaction
This enzyme also hydrolyses (R)-piperidine-3-carboxamide to (R)-piperidine-3-carboxylic acid and NH3.