PROBLEM TO BE SOLVED: To provide a tea-derived monoterpene glycosylation enzyme, and a method for producing a monoterpene glycoside using the same.SOLUTION: A tea-derived monoterpene glycosylation enzyme, and a method for producing a monoterpene glycoside using the enzyme are provided. A transformant introducing a tea-derived monoterpene glycosylation enzyme gene, and a method for producing the transformant are provided.