The Australian Constitution gives the Governor-General executive power. This means the Governor-General has been given certain powers to act on behalf of the Queen. However, the role of the Governor-General is not just defined by the Constitution but also by custom and tradition.
While executive power is exercised by the Governor-General, in reality this is normally done on the advice of the Prime Minister and ministers, who have day-to-day responsibility for governing Australia. They regularly inform the Governor-General about their work.
Discover more about the Australian Government with this fact sheet.