It reminds me of a more primitive form of the Crystalline Entity from star trek. This is pure speculation...but, Perhaps such entities if allowed to evolve under the right circumstances could give rise to a completely different form of intelligent life. Which leads us to speculate that extra terrestrial life forms are not limited to the Goldilocks zones, and organisms which do not require photosynthesis could be prevalent thought the cosmos.
Thinking about how plants produce energy from light photons, it seems reasonable that some organisms could evolve to directly harness the charges of electrons instead.