It looks like it may project a special tinfoil field around the whole house meaning you only need to wear an actual tin foil hat when you go for a walk.
Looks like the top of a Van de Graaff generator, so probably used to collect atmospheric electrostatic charge for the purpose of reanimating the creature
What kind of aerial/dish is this?
https://goo.gl/maps/XgN4A5XNpFXpJi6t9