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+0260 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:
G with hook (majuscule: Ɠ, minuscule: ɠ) is a letter of the extended Latin alphabet. In the International Phonetic Alphabet, its small caps form represents the voiced uvular implosive and its lowercase form represents the voiced velar implosive. Because it occurs in the orthographies of some African languages, including some unofficial orthographies of Fula, it is included in the African reference alphabet.