Well, I myself has never personally thought of working with him, but from all the information online, apparently he's an angel of redemption.
He can help with bringing you spirituality, purity, and knowledge of the higher powers/entities that some have not extended their minds to think about. Says he helps with getting through tough and traumatic experiences/situations. He can help with converting to Christianity if you feel like you're in doubt or have questions going beyond the physical state of mind.
It is believed that he tends to admire those of the zodiac sign Cancer but he still accepts prayers and devotes to him.
That's all I can elaborate on, because again I never thought to work with him, but I hope everything goes well with him and you.
"but he still accepts prayers and devotes to him."
I'm not sure I quite agree with this, as in general, and in my own experience (though I'm sure experienes vary), angels do not accept prayer, devotion, or veneration of any sort. They are servants first and foremost, and due to their own devotion to the Abrahamic God, they believe that all praise should be directed to said God. They will assist anyone, believer and nonbeliever alike, but do not directly thank them for anything. Any praise of their assistance should be directed at the power they serve. Again, this is what I've gleaned from my own experiences, and I certainly haven't worked with every angel in existence. This behavior may or may not be universal among their kind.