Which of the following is NOT a function of dopamine?

Dopamine is a crucial neurotransmitter in the brain that plays a significant role in several functions. Among its primary functions, dopamine is involved in controlling motor functions, modulating mood, and facilitating pleasure and reward.

When we consider the choice about regulating skin temperature, it becomes clear why this is the correct answer. Dopamine does not have a direct role in regulating skin temperature; that function primarily falls under the responsibilities of other systems in the body, such as the hypothalamus and endocrine system. The hypothalamus is specifically involved in maintaining homeostasis, including temperature regulation, through various mechanisms that do not involve dopamine.

In summary, while dopamine plays significant roles in movement coordination, emotional regulation, and reward pathways, it does not influence skin temperature, making that option the correct response to the question.