This is likely a sacred vocal piece, possibly arranged for piano, bearing Mozart's stylistic imprint of clear melody and graceful harmony. The K. Anh. A10 designation suggests it's an addition to the Köchel catalogue.
Pay close attention to the phrasing and the expressive quality of the melodic line.
Adoramus te(K.Anh.A10) (K.327) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
Adoramus te(K.Anh.A10) (K.327) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.