Can this cable be used for OTG functions on smartphones and tablets?

Yes, this cable supports OTG functions.

Questions & Answers: Type-A to Micro-B Connector Data Cable USB Flat Slim Line 5g/bps High Speed USB-A USB 3.0 Male to Female Cord Support OTG Cable(S4A-W82)(25cm)

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Type-A to Micro-B Connector Data Cable USB Flat Slim Line 5g/bps High Speed USB-A USB 3.0 Male to Female Cord Support OTG Cable(S4A-W82)(25cm)

Type-A to Micro-B Connector Data Cable USB Flat Slim Line 5g/bps High Speed USB-A USB 3.0 Male to Female Cord Support OTG Cable(S4A-W82)(25cm)