I think there's a slight correlation, but it isn't anything definitive. A lot of "fat" guys seem to be more estrogen-prone in the first place. However, most people who are fat are just fat because they eat too damn much.
usually it's just the people who are prone to gyno. they tend to also easily gain weight, but at the same time there are thin guys who are the same way.
Best advice? Exercise and eat right and get your BF% down anyway.