The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+04B1 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
Kazakh Uo or Straight U with stroke (Ұ ұ; italics: Ұ ұ), is a letter of the Cyrillic script. In Unicode, this letter is called "Straight U with stroke". Its form is the Cyrillic letter Ue (Ү ү Ү ү) with a horizontal stroke through it.
Kazakh Short U is used only in the alphabet of the Kazakh language, where it represents the near-close near-back rounded vowel /ʊ/. In other circumstances, it is used as a replacement for the former letter to represent the close front rounded vowel /y/ in situations where it would be easily confused with Cyrillic У у. It is romanized as ⟨ū⟩ in Kazakh (2021 reform).