intransitive verb, godan verb
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means sunlight, so the verb is to shine or to glitter. Just imagine what happens when sunlight hits things!
Remember how you learned the reading for 光? Well this is almost the same thing. Just change the り to る and you'll know this reading!
The diamond shines when the sun hits it.
The water in the pool shines with the sunlight.
Didn't the sky shine red just now?