In order to provide liaison with the department of health, provide continuity between changes in board membership, achieve uniformity as appropriate in licensure or regulated activities under the jurisdiction of the department, and to better represent the public interest, the secretary, or a designee appointed by the secretary, shall serve as an ex officio member of every health professional licensure or disciplinary board established under Title 18 RCW under the administrative authority of the department of health. The secretary shall have no vote unless otherwise authorized by law.