It managed Meiseki (card showing official rank, name and age) of monks and nuns such as the issuance of the Official certificate or kaicho (Certificates of Reception of Buddhist Commandments, supervised butsuji (Buddhist memorial service) or hoe (Buddhist mass), did the courtesy and entertaining work for foreign delegates, wined and dined barbarians in Kyoto and administered Korokan as its duty.
度牒や戒牒の発行といった僧尼の名籍の管理、宮中での仏事法会の監督、外国使節の送迎・接待、在京俘囚の饗応、鴻臚館の管理を職掌とした。