Lawmaking function. principle function of any legislature. The Representative Function. Service to Constituents. The oversight function. Public Education function of Congress. The conflict resolution function. Click to see full answer. Similarly one may ask, what are the six duties of Congress? Terms in this set (8) Lawmaking. The primary function of Congress is to pass rules that all Americans must obey. Representation. Trustee View of Representation. Instructed-Delegate View of Representation. Service to Constituents. Oversight. Public Education. Conflict Resolution. Similarly, what are the duties and responsibilities of Congress? Legislative Branch The primary duty of Congress is to write, debate, and pass laws, which are then sent to the president for his approval and final signature. Other congressional duties include investigating pressing national issues and supervising the executive and judicial branches. Thereof, what are the 5 duties of Congress? The Functions of Congress. Congress has five main functions: lawmaking, representing the people, performing oversight, helping constituents, and educating the public.What are 3 major responsibilities of members of Congress? Congress has the power to: Make laws. Declare war. Raise and provide public money and oversee its proper expenditure. Impeach and try federal officers. Approve presidential appointments. Approve treaties negotiated by the executive branch. Oversight and investigations.