What is the general function of the hindbrain

It's the place where a lot of vital bodily processes are done in, signalling your body to do things like breathing, beating your heart, and receiving signals.

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Explanation:

The three structures of the hindbrain are the medulla, pons, and cerebellum. The medulla is largely responsible for unconscious biological functions such as breathing, heart and blood vessel activity, swallowing, vomiting, sneezing, and coughing. The pons connects the brainstem to the cerebellum and assists in coordination of movement, sleep respiration, appetite, and facial sensations. The cerebellum is the back portion of the brainstem and helps moderating both emotion and coordination of movement and sense of balance. The cerebellum is the part of the brain that organizes sensory input that guides movement.