The Cabinet in a presidential system of government serves as an advisory council to the president, comprising heads of executive departments and other key officials. The Cabinet's primary function includes providing expertise and recommendations on various policy areas, including national security, economic strategy, and social issues. The members are responsible for implementing presidential policies within their respective departments and often play a significant role in shaping the administration's agenda. Additionally, the Cabinet helps foster communication between the president and Congress, enhancing the overall decision-making and governance process in the federal system.