In order to carry out the provisions of sections 251.010 to 251.440, the department, by and through the director, may convene conferences, hold hearings, conduct demonstration projects, accept grants and other financial assistance and may consult, cooperate with, assist, make and enter into contracts with other boards, commissions, agencies and institutions of this state, with local and federal governments, and private organizations, upon such terms as may be mutually agreed upon, and may exercise such additional powers and duties as may be necessary to carry out the functions of the department under the law.